Well, not until now. Answer: I have a few of each, v1, v2 and also v3. I have not tried loading firmware from the SD card. As far as I know, the cam plus lite gets enabled in the account settings, and then selected for each camera individually in the event recording settings, under smart detection. It works for all my non-pan Wyze cameras, v1, v2 and v3, but interestingly I can't seem to be able to enable this for the pan cam v3! But, as already stated earlier, I just let Wyze record any movement anyway, and sort it out when I need to. Plus, if a dog without handler visits your front yard, or a cat decides to dig a hole, or at night raccoons and opossums pay you a visit, person detection would miss those events.
If you are not using the automatic pan scan on the pan cam, then you might as well replace it with a non-pan camera. But you lose the deterrence effect from a camera that pans around regularly. If there is such an effect, and if anybody needs to be deterred...